An agent is only aware of parts of the world, sometimes called the “projected world” [1]}.
We define an agent's knowledge graph (KG) to consist of all the concepts and predicates the agent is aware of, i.e., the agent's universe. A knowledge graph (KG) is a graphical representation where concepts are represented as nodes. A link from subject node \(s\)  to object node \(o\) , labeled by \(p\) , refers to the triple sentence
(s, p, o). An agent's KG can be considered as a personalized view of the semantic state.
